Suction apparatus

ABSTRACT

A suction apparatus is provided, including a suction head, a suctioned material container for accommodating suctioned material, a suction blower device arranged on the suction head, and a channel device associated with the suction blower device for conducting process air at the suction head, wherein a pipe element with an adapter device is provided, wherein the adapter device is fluidically releasably connectable or connected to a suction port of the suction apparatus for performing a suction operation and the adapter device is fluidically releasably connectable or connected to a first air outlet for performing a blowing operation, and wherein an air inlet opening of a second channel for supplying process air from the suction blower device to a second air outlet is closed by at least one wall element of the adapter device when the adapter device is properly connected to the first air outlet.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of international application number PCT/EP2021/061345, filed on Apr. 29, 2021, and claims the benefit of German application number 10 2020 113 521.1, filed on May 19, 2020, which applications are incorporated herein in their entirety by reference and for all purposes.

BACKGROUND OF THE INVENTION

The invention relates to a suction apparatus, comprising a suction head, a suctioned material container for accommodating suctioned material, a suction blower device arranged on the suction head, and a channel device associated with the suction blower device for conducting process air at the suction head, wherein the channel device comprises at least one first air outlet and a second air outlet, and wherein the channel device comprises a first channel associated with the first air outlet for supplying air to the first air outlet and a second channel associated with the second air outlet for supplying air to the second air outlet.

Disclosed in DE 10 2004 013 063 A1 is a vacuum cleaner with a vacuum cleaner housing that comprises lower part comprising a dirt collection container and an upper part that can be placed on the lower part and that accommodates a suction assembly, and with a gripping bar that is mounted on the lower part so as to be pivotable about a pivot axis and that is of U-shaped configuration and comprises a handle as well as two legs projecting from the handle on one side, wherein locking elements are arranged on the legs and on the upper part, which engage one behind the other when the gripping bar is oriented vertically. Arranged at least on one leg and on the vacuum cleaner housing at a distance from the locking elements are latching elements, which are able to be brought into engagement with one another by pivoting the gripping bar into its vertical position.

The documents WO 2018/057358 A1, CN 201847612 U, JP H0646974, WO 2010/092514 A1, EP 1656064 B1, US 2005/0257340 A1, U.S. Pat. No. 5,339,487 A and EP 0935944 A1 each disclose further vacuum cleaners with a vacuum cleaner housing, a gripping bar being pivotably mounted on the vacuum cleaner housing.

US 2005/0050677 A1 discloses a vacuum cleaner with a suctioned material container, wherein the suctioned material container is releasably connected to a suction head of the vacuum cleaner and wherein the suctioned material container comprises a pivotably mounted gripping bar.

Disclosed in EP 3448218 B1 is a vacuum cleaner comprising a container, a suction unit, an air channeling unit, and an exhaust air unit, wherein the exhaust air unit comprises a collection container defining a substantially annular air flow volume, which is concentric to the suction unit and which is positioned around one or more outlet openings of the suction unit in order to collect air and to conduct collected air to an outlet opening of the collection container. The exhaust air unit further comprises two opposing exhaust air channels, wherein each of the two channels surrounds a respective portion of the collection chamber and comprises an inlet end coinciding with the outlet opening of the collection container and a respective outlet end, which is opposed to the inlet end, in order to discharge air that is suctioned by the suction unit.

U.S. Pat. No. 4,809,394, US 2002/0088103 A1, and DE 602 00 858 T2 also disclose vacuum cleaners.

SUMMARY OF THE INVENTION

In accordance with an embodiment of the invention, a suction apparatus is provided, which is versatile while having a compact design and which is easily and comfortably operable. In accordance with an embodiment of the invention, provision is made in a suction apparatus that the suction apparatus comprises a pipe element with an adapter device, wherein the adapter device is fluidically releasably connectable or connected to a suction port of the suction apparatus for performing a suction operation and the adapter device is fluidically releasably connectable or connected to the first air outlet for performing a blowing operation, and wherein an air inlet opening of the second channel for supplying process air from the suction blower device to the second air outlet is closed by at least one wall element of the adapter device when the adapter device is properly connected to the first air outlet.

As a result, a decoupling of process air through the second air outlet can be blocked or unblocked depending on whether the adapter device is connected to the first air outlet or not. Assuming the adapter device is properly connected to the first air outlet, the decoupling of the process air takes place, in particular, exclusively via the first air outlet, the process air then being decoupled from the suction head via the first air outlet, in particular, at an increased outflow speed and/or at an increased pressure. Thus, for example, an effective blowing function can be achieved on the suction apparatus.

If the adapter device is separated from the first air outlet, the second air outlet is unblocked. The process air is then decoupled from the suction head both via the first air outlet and via the second air outlet. An air flow of the decoupled process air is thereby distributed to the first air outlet and the second air outlet, such that an outflow speed and/or a pressure of the decoupled process air is reduced at the first air outlet or at the second air outlet. An operator of the suction apparatus undesirably being blown on during operation is thereby minimized.

The suction apparatus in accordance with the invention can thereby be used by an operator in a particularly versatile and comfortable manner.

When the adapter device is separated from the first air outlet, the second channel is, in particular, completely unblocked and/or completely open. When the adapter device is properly connected to the first air outlet, the second channel is, in particular, completely blocked and/or completely closed so that, in particular, no process air is decoupleable by the second air outlet.

In principle, it is also possible that an intermediate state is achievable using the adapter device, in which the air inlet opening of the second channel is at least partially unblocked and/or partially open.

In principle, it is also possible that the air inlet opening of the second channel is able to be closed or unblocked by a nozzle element, wherein, for example, the nozzle element is arranged on the suction head or on the adapter device.

It is further possible that the air inlet opening of the second channel is able to be closed or unblocked by arranging an accessory element of the suction apparatus within the first channel. For example, the accessory element is a nozzle element or a crevice nozzle for use with the suction apparatus, which is arrangeable within the first channel. When the accessory element is arranged within the first channel, the air inlet opening of the second channel is blocked by the accessory element.

It may be favorable if the air inlet opening of the second channel is arranged in a transition region between a connecting channel of the channel device and the second channel, wherein process air from the suction blower device is suppliable to the first channel and/or the second channel by the connecting channel. The second channel can thereby be fluidically separated from the connecting channel in a technically simple manner.

It may be favorable if the air inlet opening of the second channel is unblocked when the adapter device is separated from the first air outlet. As a result, for example, an automatic transition into an operating mode in which the decoupling of the process air via the first air outlet and the second air outlet takes place when an operator separates the adapter device from the first air outlet, which enables a comfortable operation of the suction apparatus.

It may be advantageous if the at least one wall element of the adapter device has a curved shape and/or if the at least one wall element lies in a geometrical cylinder portion. The at least one wall element can thereby be connected, for example, to a cylindrical hose element in a technically simple manner, thereby making it possible for the adapter device to be arranged or formed on a cylindrical hose element in a technically simple manner.

It may be favorable if the suction apparatus comprises a connecting device, by which the adapter device is releasably fixable and/or releasably latchable to the first air outlet.

In particular, provision may be made that the suction apparatus comprises a connecting device, by which the adapter device is releasably fixable and/or releasably latchable to the suction port.

In particular, provision may be made that arranged on the first air outlet and/or on the first channel is at least one rib element for supporting and/or guiding the adapter device, and in particular that the at least one rib element is oriented at least approximately in parallel to a first longitudinal central axis of the first channel.

For example, within the suction head, the second channel is in fluidic connection with a connecting channel for supplying process air from the suction blower device to the first channel and/or the second channel when the adapter device is separated from the first air outlet.

For example, within the suction head, the second channel is closed in a fluid-tight manner relative to a connecting channel for supplying process air from the suction blower device to the first channel and/or the second channel in the suction head when the adapter device is properly connected to the first air outlet.

For example, within the suction head, the first channel is in fluidic connection with a connecting channel for supplying process air from the suction blower device to the first channel and/or the second channel when the adapter device is separated from the first air outlet.

For example, within the suction head, the first channel is in fluidic connection with a connecting channel for supplying process air from the suction blower device to the first channel and/or the second channel when the adapter device is properly connected to the first air outlet.

In accordance with an embodiment of the invention, provision is made in the suction apparatus stated at the outset that a smallest angle between a first longitudinal central axis of the first channel and a second longitudinal central axis of the second channel is at least 40° and/or at most 70°.

A torque exerted on the suction apparatus and/or on the suction head upon the decoupling of process air from the suction head during operation can thereby be reduced. Undesired movements and, in particular, undesired rotational movements of the suction apparatus during operation can thereby be reduced. An operation of the suction device that is as comfortable as possible is thereby made possible.

The suction apparatus can thereby also be comfortably used, in particular, when it has, for example, reduced static friction relative to a ground, for example because the ground is smooth or because the suction apparatus is equipped with rollers for moving on the ground. In the case of the suction apparatus in accordance with the invention, undesired (rotational) movements resulting from the decoupling of process air can be reduced in these situations, too.

In particular, provision may be made that a smallest angle between the first longitudinal central axis of the first channel and the second longitudinal central axis of the second channel is at least 50° and/or at most 60°. A torque on the suction apparatus that arises upon the decoupling of process air can thereby be further reduced.

It may be favorable if a smallest angle between a main flow direction of process air conducted through the first channel and a main flow direction of process air conducted through the second channel is at least 40° and/or at most 70° and, in particular, at least 50° and/or at most 60°.

For example, a first longitudinal central axis of the first channel and a second longitudinal central axis of the second channel lie at least approximately in a common plane, wherein the plane is oriented transversely and, in particular, perpendicularly to a longitudinal central axis and/or to a height direction of the suction apparatus.

For example, a main flow direction of process air conducted through the first channel and a main flow direction of process air conducted through the second channel lie at least approximately in a common plane, wherein the plane is oriented transversely and, in particular, perpendicularly to a longitudinal central axis and/or to a height direction of the suction apparatus.

For example, an outer contour of the first air outlet is of at least approximately circular configuration.

For example, a wall element of the first channel, which delimits a flow space for air of the first channel, is of cylindrical configuration at least in sections and/or segments.

It may be favorable if the first air outlet and the second air outlet are spaced at a distance from one another in the circumferential direction of the suction head and, in particular, if a smallest distance between the first air outlet and the second air outlet is at least 1 cm and/or at most 7 cm. A torque arising during the coupling of process air can thereby be further reduced.

For example, a first midpoint of an outer contour of the first air outlet and a second midpoint of an outer contour of the second air outlet are at least approximately at the same height with respect to a height direction of the suction apparatus.

For example, a lower end of the at least one first air outlet and a lower end of the second air outlet are at least approximately at the same height with respect to a height direction of the suction apparatus.

For example, an upper end of the first air outlet and an upper end of the second air outlet are at least approximately at the same height with respect to a height direction of the suction apparatus.

For example, the second air outlet has an at least 10% and, in particular, at least 15% and, in particular, at least 20% greater cross sectional area than the first air outlet. As a result, a decoupling of process air via an enlarged cross sectional area can be achieved, thereby reducing a flow speed and/or a pressure of the decoupled air.

For example, an outer contour of the second air outlet is of substantially rectangular configuration.

For example, an outer contour of the second air outlet lies in a geometrical rectangle at least one sections.

For example, at least three of four edge portions of the outer contour of the second air outlet lie in a geometrical rectangle.

For example, a fourth edge portion of the outer contour of the second air outlet comprises a first subportion and a second subportion adjoining the first subportion, wherein the second subportion is oriented transversely to the first subportion.

For example, at least one edge portion of the outer contour of the second air outlet is oriented transversely and, in particular, perpendicularly to a height direction of the suction apparatus.

For example, an edge portion of the outer contour of the second air outlet pointing toward the first air outlet is of rectilinear configuration.

It may be favorable if the first channel and the second channel have flow spaces for air that are fluidically separated or fluidically separable from one another. The second channel can thereby be fluidically separated from the first channel within the suction head so that, for example, no decoupling of process air is able to take place via the second channel.

It may be advantageous if a flow cross section of the first channel is at least approximately constant. As a result, for example, the connection of the adapter device to the first air outlet can be realized in a technically simple manner.

It may be favorable if a flow cross section of the second channel expands toward the second air outlet, and in particular if the flow cross section of the second channel is greatest at an end of the second air outlet that points toward the second air outlet and/or is smallest at an end of the second channel that points away from the second air outlet. A flow speed of process air decoupled through the second channel can thereby be reduced.

In particular, provision may be made that the channel device comprises a connecting channel for producing a fluidic connection between an exit of the suction blower device and the first air outlet and/or the second air outlet, wherein air to be decoupled from the suction head by the connecting channel is divided or is divisible to the first channel and/or to the second channel. For example, process air can thereby be suppled to the first channel and the second channel simultaneously to be decoupled.

For example, the connecting channel is arranged in an inside space of the suction head.

For example, the connecting channel comprises a first subregion in which a flow cross section of the connecting channel is at least approximately constant.

For example, the connecting channel comprises a second subregion adjoining a first subregion, wherein the second subregion points toward the first channel and/or the second channel, and wherein a flow cross section of the connecting channel in the second subregion expands and, in particular, monotonously expands toward the first channel and/or toward the second channel. As a result, for example, a division of process air to the first channel and the second channel can be achieved in a technically simple manner.

For example, the connecting channel surrounds the suction blower device in sections.

For example, the connecting channel has a shape that is curved toward a longitudinal central axis of the suction apparatus, wherein the longitudinal central axis is oriented in parallel to a height direction of the suction apparatus.

For example, the connecting channel is arranged between an exit and/or exit channel of the suction blower device and the first channel and/or the second channel with respect to a main flow direction of air decoupled from the suction blower device.

For example, a transition region for air is formed between an exit and/or exit channel of the suction blower device and the connecting channel.

For example, a transition region for air formed between an exit and/or exit channel of the suction blower device and the connecting channel is configured in such a way that a main flow direction of air decoupled from the suction blower device reverses and, in particular, reverses by at least approximately 180° in the transition region. As a result, torques on the suction head that arise upon the decoupling of process air are further reduced.

In one embodiment, the suction apparatus comprises at least one air guiding element for distributing air to be decoupled from the suction head to the first channel and the second channel, wherein the at least one air guiding element is arranged in the connecting channel or is associated with the connecting channel. A distribution of the air to the first channel and the second channel can be achieved in a technically simple manner by way of the at least one air guiding element.

For example, the at least one air guiding element is oriented transversely to the first channel.

For example, a smallest angle between a longitudinal central axis of the at least one air guiding element and a first longitudinal central axis of the first channel is at least 20° and/or at most 50° and, in particular, at least 30° and/or at most 40°.

For example, the at least one air guiding element has a shape that is curved toward a longitudinal central axis of the suction apparatus, wherein the longitudinal central axis is oriented in parallel to a height direction of the suction apparatus.

For example, the at least one air guiding element is arranged in a subregion and/or end region of the connecting channel that points toward the first channel and/or second channel.

For example, an air guiding element and a further air guiding element spaced at a distance from the air guiding element are provided, wherein the air guiding element and the further air guiding element, in particular, are oriented at least approximately in parallel to one another.

It may be favorable if a midpoint and/or center of gravity of the suction blower device is arranged on a first side with respect to a midplane extending through a longitudinal central axis and/or height direction of the suction apparatus and if a connecting channel for supplying air from the suction blower device to the first air outlet and/or to the second air outlet is arranged, at least in sections, on a second side opposite the first side with respect to the midplane. Torques that arise upon the decoupling of process air from the suction head can thereby be further reduced.

For the same reason, it is advantageous if at least 60% and, in particular, at least 80% of a cross sectional area of the connecting channel is on the second side.

For the same reason, it is favorable if the second air outlet is arranged on a first side with respect to a midplane of the suction apparatus extending through a longitudinal central axis and/or height direction of the suction apparatus and if the first air outlet is arranged on a second side opposite the first side with respect to the midplane.

For the same reason, it is advantageous if the first longitudinal central axis of the first channel is oriented at least approximately in parallel to a plane extending through a height direction of the suction apparatus.

It may be favorable if a suction port associated with the suction blower device and/or an opening device for cooling air associated with the suction blower device and/or an operating element device of the suction apparatus are arranged on a first side of the suction apparatus. The stated components of the suction apparatus are thereby easily accessible for an operator and/or are arranged on the suction apparatus in a space-saving manner.

For the same reason, it is favorable if the first air outlet and/or the second air outlet and/or a receiving region of the suction apparatus for accommodating a cable and/or a holding device of the suction apparatus for a cable are arranged on a second side of the suction apparatus, which faces away from a first side of the suction apparatus.

In particular, provision may be made that the channel device and/or the first air outlet and/or the second air outlet are arranged below a receiving region of the suction apparatus for accommodating a cable and/or below a holding device of the suction apparatus for a cable with respect to a height direction of the suction apparatus.

It may be advantageous if the first air outlet and/or the second air outlet are arranged or formed on the suction head, and in particular if the first air outlet and/or the second air outlet are each arranged and/or formed half on a base element of the suction head and half on a hood element of the suction head arranged on the base element, wherein the hood element is arranged above the base element with respect to a height direction of the suction apparatus. The suction head and/or a suction head housing can thereby be formed in a technically simple manner.

In particular, provision may be made that the suctioned material container is releasably connected to the suction head. For example, the suction head can thereby be separated from the suctioned material container by an operator in order to empty the suctioned material container. The suctioned material container can then be reconnected to the suction head.

It may be favorable if a suction port associated with the suction blower device is arranged and/or formed on the suctioned material container. Dirty air can thereby be coupled directly into the suctioned material container by the suction blower, the dirt constituents in the air being discharged into the suctioned material container and/or on a filter unit. Clean air is then coupled by the suction blower into the suction head and decoupled therefrom via an air outlet.

It may be advantageous if the suction head comprises a suction head housing on which the first air outlet and/or the second air outlet are arranged and/or formed.

In particular, provision may be made that the channel device is arranged in an inside space of the suction head, wherein the inside space, in particular, is delimited by a suction head housing of the suction head.

The pipe element is, for example, of rigid and/or flexible configuration. For example, the pipe element is or comprises a flexible hose element like, e.g., a suction hose of the suction apparatus.

In particular, provision may be made that the suction apparatus is set up and configured as a wet-dry vacuum cleaner and/or as a mobile vacuum cleaner and/or as a stand-alone vacuum cleaner.

Process air is understood to be air that is suctioned by the suction blower device via a suction port of the suction apparatus and then decoupled via an air outlet. In particular, air that serves to cool the suction blower device or is associated with a cooling air conducting device of the suction blower device is not considered to be process air.

The longitudinal central axis of the suction apparatus is understood to be a longitudinal axis of the suction apparatus that is oriented in the height direction of the suction apparatus. For example, the suction apparatus is of rotationally symmetrical configuration at least in sections with respect to the longitudinal central axis.

When the suction apparatus is properly positioned in an operating state, the longitudinal central axis and/or the height direction are oriented at least approximately in parallel to the direction of gravity.

A reference to “top” or “bottom” and/or to “upper” or “lower” elements of the suction apparatus is always to be understood relative to a height direction of the suction apparatus, wherein it can be assumed that the suction apparatus is correctly positioned in an operating state (for example with rollers on a floor).

Unless otherwise specified, the indications “about” and “at least approximately” are to be understood to mean that a geometric shape deviates by an average of at most 10% from a specified ideal geometric shape or that a value and/or a distance and/or an angle deviates by at most 10% from the specified value and/or distance and/or angle. A percentage deviation of a geometric shape from an ideal geometric shape corresponds, for example, to an average deviation of a width and/or length and/or height of the geometric shape from the width and/or length and/or height of an ideal geometric shape.

The subsequent description of preferred embodiments serves in conjunction with the drawings for further explanation of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a perspective depiction of a suction apparatus laterally from above, wherein a gripping bar of the suction apparatus is located in a second position and wherein a connecting cable of the suction apparatus is arranged on a holding device of the suction apparatus;

FIG. 2 shows a perspective depiction of the suction apparatus according to FIG. 1 , wherein the gripping bar is located in a first position and wherein an adapter device is connected to a connecting device of the suction apparatus;

FIG. 3 shows a perspective view of a first side of the suction apparatus according to FIG. 1 , wherein the gripping bar is located in the first position;

FIG. 4 shows a perspective lateral view of the suction apparatus according to FIG. 1 , wherein the gripping bar is located in the first position and wherein the adapter device is connected to the connecting device;

FIG. 5 shows a perspective lateral view of the suction apparatus according to FIG. 1 , wherein the connecting cable of the suction apparatus is arranged on the holding device of the suction apparatus;

FIG. 6 shows a perspective view of a second side of the suction apparatus according to FIG. 1 , wherein the connecting cable of the suction apparatus is arranged on a holding device of the suction apparatus;

FIG. 7 shows a cut view of a cut along line 2-2 according to FIG. 6 ;

FIG. 8 shows a detail view of region A according to FIG. 7 ;

FIG. 9 shows a perspective view of a second side of the suction apparatus according to FIG. 1 , wherein the adapter device is arranged on the connecting device of the suction apparatus;

FIG. 10 shows a cut view of a cut along line 4-4 according to FIG. 9 ;

FIG. 11 shows a perspective view from above of the suction apparatus according to FIG. 1 ;

FIG. 12 shows a cut view of a cut along line 6-6 according to FIG. 11 ;

FIG. 13 shows a cut view of a cut along line 7-7 according to FIG. 11 ;

FIG. 14 shows a cut view of a cut along line 8-8 according to FIG. 5 , wherein the gripping bar is located in the first position and is properly connected to the suction apparatus;

FIG. 15 shows a cut view of a cut along line 8-8 according to FIG. 5 , wherein the gripping bar is dismounted from the suction apparatus;

FIG. 16 shows a partial cut view of a cover element of the suction apparatus according to FIG. 1 from above, wherein the gripping bar is located in the second position; and

FIG. 17 shows a perspective detail view of a cover element of the suction apparatus, wherein the gripping bar is located in the second position.

DETAILED DESCRIPTION OF THE INVENTION

Identical or functionally equivalent elements are provided with the same reference numerals in all Figures.

An embodiment of a suction apparatus, which is shown in FIGS. 1 to 17 and there is denoted by 10, is a mobile suction apparatus and is configured as a stand-alone appliance. For example, the suction apparatus 10 is configured as a wet-dry vacuum cleaner.

The suction apparatus 10 comprises a suctioned material container 12 with a receiving space 14 for suctioned material. The suctioned material container 12 is of barrel-shaped configuration and has, for example, a cylindrical shape.

The suctioned material container 12 comprises a bottom element 16 and a wall element 18 arranged on the bottom element 16, which delimits the receiving space 14. For example, the wall element 18 has a cylindrical shape.

A suction head 20 is releasably and, in particular, removably seated on the suctioned material container 12. Arranged on the suction head 20 is a suction blower device 22, which generates a suction flow in an operating state of the suction apparatus 10. The suction blower device 22 comprises a motor 24, in particular electric motor, and a blower unit 26 (suction blower) driven by the motor 24.

The suction apparatus 10 comprises a longitudinal central axis 28, wherein the suction apparatus 10 is, in particular, of rotationally symmetrical configuration at least in sections with respect to the longitudinal central axis 28. For example, the suctioned material container 12 and/or the suction head 20 are of rotationally symmetrical configuration at least in sections with respect to the longitudinal central axis 28.

When the suction apparatus 10 is properly positioned in an operating state, the longitudinal central axis 28 is oriented at least approximately in parallel to a direction of gravity 30.

The longitudinal central axis 28 of the suction apparatus 10 is understood to mean, in particular, an axis that is oriented in parallel to a height direction 32 of the suction apparatus 10, wherein, for example, the bottom element 16 is arranged at a lower height (i.e. further down or at a lower gravitational potential) than the suction head 20 with respect to the height direction 32 when the suction apparatus 10 is properly positioned in an operating state.

A subsequent reference to “top” or “bottom” and/or to “upper” or “lower” elements of the suction apparatus 10 is always to be understood relative to the height direction 32 of the suction apparatus 10, wherein it can be assumed that the suction apparatus 10 is properly positioned in an operating state.

Arranged on the suctioned material container 12 at a distance from the bottom 16 and/or above the bottom 16 is a suction port 34, via which a suctioned air flow can be coupled in by the suction blower device 22 through the suctioned material container 12 into the suction blower device 22 arranged on the suction head 20. Associated with this suction port 34 is a connecting device 36 for a pipe element of the suction apparatus 10, wherein the connecting device 36, for example, is arranged and/or formed at least partially on the suction port 34.

The pipe element is, for example, of rigid and/or flexible configuration. For example, the pipe element is a flexible hose element like, e.g., a suction hose of the suction apparatus 10. For example, a suction operation can be performed by a user of the suction apparatus 10 using the pipe element.

A fluidic releasable connection between the suction port 34 and the pipe element can be produced by the connecting device 36. For producing a releasable connection of the pipe element to the connecting device 36, the pipe element comprises an adapter device.

The suction port 34 comprises, for example, an opening 38, which is, e.g., of circular configuration and which is arranged on the suctioned material container 12 at a distance from the bottom 16 and/or above the bottom 16. For example, the opening 38 is arranged or formed on the wall element 18 of the suctioned material container.

A releasable fluidic connection between the pipe element and the suction port 34 can be produced by the suction port 34 and the connecting device 36. A fluidic connection between the pipe element and the receiving space 14 of the suctioned material container 12 can thereby be produced by the suction port 34, for example by way of the opening 38.

In one embodiment, a stand 40 is associated with the suctioned material container 12. This stand 40 is, for example, of annular configuration and comprises a receiving region 42 for the suctioned material container 12. The receiving region 42 comprises a support face for the suctioned material container 12 on which the suctioned material container 12 can be placed. For example, the receiving region 42 is delimited by a shoulder 43 of the stand 40.

The stand 40 comprises rollers 44 by way of which the stand 40 and thus the suction appliance 10 is movable. Provision may also be made that “extendable” rollers are arranged on the stand 40 and depending on the use case the suction apparatus 10 is slidable on a floor using the stand 40 with “retracted rollers” or is movable on a floor using the rollers with “extended rollers”.

The suctioned material container 12 is closed toward a top side 46 of the suctioned material container (in a direction away from the bottom element 16) by a bottom side 48 of the suction head 20 arranged on the suctioned material container 12.

Alternatively or in addition, it is also possible that the suctioned material container 12 is closed by a separate suctioned material container lid (not shown).

The suction head 20 comprises a support region 50 by way of which it is supportable on the suctioned material container 12.

For fixing the suction head 20 to the suctioned material container 12, a fixing device 52 is provided, which, for example, comprises one or more latching elements 54, by way of which the suction head 20 is latchable to the suctioned material container 12.

The suction apparatus 10 comprises a filter unit 56. Relative to a main flow direction 58 of the suction flow generated by the suction blower device 22, the filter unit 56 is arranged between the receiving space 14 and the suction blower device 22.

The filter unit 56 comprises a clean side 60, which faces toward an inlet 62 for air of the suction blower device 12 relative to the main flow direction 58, and a dirty side 64, which faces toward the receiving space 14.

In the embodiment shown, the filter unit 56 is configured as a cartridge filter.

The filter unit 56 is releasably connected to the suction head 20 by a filter holder 66. The filter holder 66 is, for example, arranged below the inlet 62 of the suction blower device 22 with respect to the height direction 32.

The suction head 20 comprises a suction head housing 68, which, for example, is configured as a peripheral housing and/or delimits an inside space 70 of the suction head 20.

The suction head housing 68 comprises a base element 72, which points toward the receiving space 14 of the suctioned material container 12. For example, the bottom side 48 is formed on this base element 72.

A hood element 74 of the suction head housing 68 connected to the base element 72 is seated on the base element 72. For example, a cover element 76 of the suction head housing 68 is formed on this hood element 74.

For example, one or more accessory holding elements 77 for holding and/or storing accessories for the suction apparatus 10 are arranged and/or formed on the cover element 76.

The cover element 76 has, e.g., a top side 78. Provision may be made that this top side 78 is set up and configured as a supporting face for the arrangement of accessories for the suction apparatus 10. For example, the top side 78 is of planar configuration at least in sections. For example, grooves for holding the accessories are formed on the top side 78.

For example, the top side 78 forms an uppermost end face of the suction apparatus 10 and/or of the suction head housing 68.

The hood element 74 is, for example, an upper housing element of the suction head housing 68. The hood element 74 faces toward an operator of the suction apparatus 10 when the latter is properly positioned in an operating state.

For example, the fixing device 52 and/or the latching elements 54 are arranged on the base element 72.

A holding element 79 for the pipe element of the suction apparatus 10, for example a suction hose of the suction apparatus 10, is arranged on the suction head 20. For example, the holding element 79 is arranged on the hood element 74 of the suction head housing 68.

An operating element device 82 for control of the suction apparatus 10 by a user is arranged on a first side 80 of the suction apparatus 10 and/or of the suction head housing 68. Functions of the suction apparatus 10 like, e.g., a suction operation or a blowing operation of the suction apparatus 10 can be controlled by a user using the operating element device 82.

Associated with the suction blower device 22 is a cooling air conducting device 84, which is arranged and/or formed on the suction head 20. The cooling air conducting device 84 serves to conduct cooling air, by which the suction blower device 22 is cooled during operation.

The cooling air conducting device 84 comprises a cooling air space 86, which is formed in the inside space 70 of the suction head housing 68 between the hood element 74 and the suction blower device 22. This cooling air space 86 is fluidically connected to an opening device 88, which is formed on the suction head housing 68. For example, the opening device 88 comprises a plurality of openings and/or ventilation slots through which cooling air is able to be coupled and/or decoupled from the suction head housing 68.

The opening device 88 is formed, for example, on the base element 72 of the suction head housing 68 and/or on the first side 80 of the suction head housing 68. For example, the opening device 88 is seated at least approximately at the level of the fixing device 52 on the suction head housing 68 with respect to the height direction 32.

Arranged on a second side 90 of the suction apparatus 10 and/or of the suction head housing 68 that faces away from the first side 80 are a holding device 92 for the arrangement of a cable 94 of the suction apparatus 10 and an air outlet of a channel device 96 for conducting process air at the suction head 20. The second side 90 is a side of the suction apparatus 10 and/or of the suction head housing 68 that faces away from the first side 80 and/or the operating element device 82. For example, the first side 80 and the second side 90 are arranged on different sides of a plane extending through the longitudinal central axis 28.

The cable 94 is, e.g., a connecting cable of the suction apparatus 10 for supplying the suction apparatus 10 with electrical energy.

For example, the cable 94 is guided outwards out of the inside space 70 of the suction head housing 68 through a cable outlet 98 and there is accessible for an operator of the suction apparatus 10.

The cable outlet 98 is arranged and/or formed, for example, on the base element 72 of the suction head housing 68. For example, the cable outlet 98 is arranged at a distance from the air outlet 101 of the channel device 96 in a peripheral direction 100 of the suction apparatus 10 and/or of the suction head housing 68, wherein the peripheral direction 100 lies in a plane oriented perpendicularly to the longitudinal central axis 28.

For example, the cable outlet 98 is at least approximately at the same height as the channel device 96 with respect to the height direction 32.

The channel device 96 serves to conduct process air in the inside space 70 of the suction head housing 68.

In particular, the channel device 96 is not intended for conducting a cooling air flow. A conduction of the cooling air flow is effected by the cooling air conducting device 84 and/or by the opening device 88.

The air outlet 101 of the channel device 96 comprises a first air outlet 102 and a second air outlet 104. The first air outlet 102 and the second air outlet 104 are arranged and/or formed on the suction head housing 68. For example, the first air outlet 102 and/or the second air outlet 104 are arranged and/or formed at least partially on the base element 72 and/or on the hood element 74. For example, the first air outlet 102 and/or the second air outlet 104 are each arranged and/or formed half on the base element 72 and half on the hood element 74.

The channel device 96 comprises a first channel 106 associated with the first air outlet 102 and a second channel 108 associated with the second air outlet 104. Process air to be decoupled from the inside space 70 of the suction head housing 68 can be supplied to the first air outlet 102 by the first channel 106. Process air to be decoupled from the inside space 70 can be supplied to the second air outlet 104 by the second channel 108.

The first channel 106 extends along a first longitudinal central axis 110 and the second channel 108 extends along a second longitudinal central axis 112. The first longitudinal central axis 110 and the second longitudinal central axis 112 lie at least approximately in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28 of the suction apparatus 10.

During the operation of the suction apparatus 10, a main flow direction of air flowing through the first channel 106 and/or the second channel 108 is oriented at least approximately in parallel to the first longitudinal central axis 110 or the second longitudinal central axis 112.

The first longitudinal central axis 110 is oriented transversely to the second longitudinal central axis 112. For example, a smallest angle 114 between the first longitudinal central axis 110 and the second longitudinal central axis 112 is about 40° to 50°.

The first air outlet 102 is of circular configuration and/or comprises an outer contour 116 of circular configuration. For example, the first air outlet 102 is configured as a circular opening on the suction head housing 68, for example on the base element 72 and/or on the hood element 74.

The first channel 106 comprises a flow space 118 for air, which is delimited by a wall element 120 of the first channel 106. For example, the wall element 120 delimits the flow space 118 in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 110 of the first channel 106.

The first channel 106 and/or the wall element 120 have a cylindrical shape.

A flow cross section 122 of the flow space 118 of the first channel 106 oriented transversely and, in particular, perpendicularly to the first longitudinal central axis 110 is at least approximately constant.

The first channel 106 and the second channel 108 are, in particular, each arranged in the inside space 70 of the suction head housing 68.

The second air outlet 104 is of substantially rectangular configuration. An outer contour 124 of the second air outlet 104 comprises a first edge portion 126, a second edge portion 128 adjoining the first edge portion 126, a third portion 130 adjoining the second edge portion 128, and a fourth edge portion 132 adjoining the third edge portion 130, wherein the fourth edge portion 132 is arranged between the third edge portion 130 and the first edge portion 126.

The first edge portion 126 and the third edge portion 130 are arranged opposite one another and are each oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28 of the suction apparatus 10. For example, the first edge portion 126 and the third edge portion 130 lie at least approximately in parallel to one another.

The second edge portion 128 is arranged pointing toward the first air outlet 102. In particular, the second edge portion 128 extends at least approximately in parallel to the longitudinal central axis 28 of the suction apparatus 10.

The first channel portion 126, the second edge portion 128, and the third edge portion 130 lie at least approximately in a geometrical rectangle.

The fourth edge portion 132 comprises a first subportion 134 and a second portion 136 following the first subportion 134. The first subportion 134 is located between the third edge portion 130 and the second subportion 136. The second subportion 136 is located between the first subportion 134 and the first edge portion 126.

The first subportion 134 is oriented, for example, at least approximately perpendicularly to the third edge portion 130 and/or in parallel to the longitudinal central axis 28. The second subportion 136 is, for example, oriented transversely to the first subportion 134 and transversely to the first edge portion 126.

The first air outlet 102 and the second air outlet 104 are arranged on the suction head housing 68 at a distance A1 from one another in the peripheral direction 100 of the suction head housing 68.

For example, a shortest distance A1 between the first air outlet 102 and the second air outlet 104 is about 1 cm to 7 cm. In particular, the shortest distance A1 corresponds to a shortest distance between the outer contour 116 of the first air outlet 102 and the outer contour 124 of the second air outlet 104, for example a shortest distance between the outer contour 116 and the second edge portion 128.

The outer contour 116 of the first air outlet 102 comprises a first midpoint 138 and the outer contour 124 of the second air outlet 104 comprises a second midpoint 140, wherein the first midpoint 138 is spaced at a distance from the second midpoint 140 in the peripheral direction 100 of the suction head housing 68.

The first midpoint 138 and the second midpoint 140 are at least approximately at the same height with respect to the height direction 32.

The first air outlet 102 comprises a lower end 142 and an upper end 144 spaced at a distance from the lower end 142 in the height direction 32. The second air outlet 104 comprises a lower end 146 and an upper end 148 spaced at a distance from the lower end 146 in the height direction 32.

The lower end 142 of the first air outlet 102 and the lower end 146 of the second air outlet 104 are at least approximately at the same height with respect to the height direction 32.

The upper end 144 of the first air outlet 102 and the upper end 148 of the second air outlet 104 are at least approximately at the same height with respect to the height direction 32.

The second channel 108 comprises a flow space 149 for air, which is delimited by a first wall element 150 and a second wall element 152 spaced at a distance from the first wall element 150. The first wall element 150 and the second wall element 152 delimit the flow space 149, in particular, in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28 of the suction apparatus 10.

The second channel 108 is delimited in the height direction 32 by wall elements arranged and/or formed on the suction head housing 68 (not shown).

The first wall element 150 is oriented transversely to the wall element 120 of the first channel 106. For example, a smallest angle between the first wall element 150 and the wall element 120 is about 40°. In particular, the first wall element is of rectilinear and/or planar configuration.

The first wall element 150 of the second channel 108 is arranged adjacent to the wall element 120 of the first channel 106. For example, the first wall element 150 intersects the second wall element 120 in an end or end region of the first channel 106 or the second channel 108 that points away from the first air outlet 102 and/or the second air outlet 104.

The second wall element 152 has a curved shape, in particular a shape that is curved toward the longitudinal central axis 28 of the suction apparatus 10.

A flow cross section 154 of the second channel 108 oriented transversely and, in particular, perpendicularly to the second longitudinal central axis 112 decreases in the direction of the second air outlet 104. For example, the flow cross section 154 corresponds to a shortest distance between the first wall element 150 and the second wall element 152.

The flow cross section 154 of the second channel 108 is, for example, greatest at an end 156 of the second channel 108 that points toward the second air outlet 104 and/or is smallest at an end 158 of the second channel 108 that points away from the second air outlet 104.

In the embodiment shown, the first air outlet 102 and/or the second air outlet 104 each is or comprises one single opening. In principle, it is also possible that the first air outlet 102 and/or the second air outlet 104 each comprises a plurality of openings, wherein the openings, for example, are arranged in rows and/or columns. For example, the openings are arranged in the form of grid and/or are formed by a grid.

On the end 158 pointing away from the second air outlet 104, the second channel 108 comprises an air inlet opening 160, which is arranged in the inside space 70 of the suction head housing 68.

The first channel 106 comprises an air inlet opening 164 on an end 162 pointing away from the first air outlet 102.

By means of the air inlet opening 164 of the first channel 106 and the air inlet opening 160 of the second channel 108, an air flow to be decoupled from the inside space 70 of the suction head housing 68 can be supplied to the first channel 106 and the second channel 108, respectively.

For supplying an air flow to be decoupled from the suction head housing 68 from the suction blower device 22 to the first air outlet 102 and/or the second air outlet 104, an connecting channel 166 is provided, which is arranged between the exit 170 of the suction blower device 22 and the first air outlet 102 and/or the second air outlet 104 in the direction of a main flow direction 168 of the air flow to be decoupled. This connecting channel 166 is associated with the channel device 96.

A main flow direction 168 of the air flow to be decoupled lies, for example, at least approximately in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28.

Process air that is suctioned via the suction port 34 and the inlet 62 by the suction blower device 22 during the operation of the suction apparatus 10 is decoupled from the suction blower device 22 out of the exit 170. Within the suction head housing 68, a fluidic connection between the exit 170 and the first air outlet 102 and/or the second air outlet 104 is produced by the connecting channel 166.

Provision may be made that an exit channel 172 is associated with the exit 170 of the suction blower device 22, said exit channel 172 being arranged between the exit 170 and the connecting channel 166 with respect to the main flow direction 168. For example, a flow cross section of the exit channel 172 is at least approximately constant.

The exit channel 172 and/or the connecting channel 166 surround the suction blower device 22 in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28 of the suction apparatus 10. The exit channel 172 and/or the connecting channel 166 have, in particular, a curved shape, in particular a shape that is curved toward the longitudinal central axis 28 of the suction apparatus 10.

For example, the connecting channel 166 surrounds the suction blower device 22 in a semicircular manner.

Accordingly, the main flow direction 168 of an air flow conducted through the connecting channel 166 has a curved path and, in particular, a path that is curved toward the longitudinal central axis 28 of the suction apparatus 10.

The exit channel 172 is arranged further inward than the connecting channel 166 with respect to a transverse direction 174, which lies in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28. (the transverse direction 174 is to be understood in the following to mean any direction that commences from the longitudinal central axis and lies in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28, in each case only one of these directions being indicated as an example in the Figures)

Provision may be made that a transition region 176 is formed between the exit channel 172 and the connecting channel 166, by which a transition of an air flow from the exit channel 172 into the connecting channel 166 is achieved.

For example, during the operation of the suction apparatus 10, the main flow direction 168 reverses by about 180° at the transition region 176.

The connecting channel 166 is set up and configured in such a way that an air flow to be decoupled from the suction head 20 is divided and/or distributed to the first channel 106 and the second channel 108 by the connecting channel 166. For this purpose, provision may be made, in particular, that one or more air guiding element 178 are arranged within the connecting channel 166.

In the embodiment shown, two air guiding elements 178 a and 178 b spaced at a distance from one another are provided, wherein the air guiding element 178 b is arranged further inward than the air guiding element 178 a with respect to the transverse direction 174. The air guiding elements 178 a and 178 b are oriented, in particular, at least approximately in parallel to one another.

The air guiding element 178 is, for example, of rib-shaped configuration and/or is configured as a rib. For example, the air guiding element 178 has a curved shape and, in particular, a shape that is curved toward the longitudinal central axis 28 of the suction apparatus 10.

The air guiding element 178 extends along a longitudinal central axis 180. For example, a smallest angle 182 between the longitudinal central axis 180 and the first longitudinal central axis 110 of the first channel 106 is about 30° to 40°.

For example, the longitudinal central axis 180 of the air guiding element 178 is oriented at least approximately in parallel to the first wall element 150 of the second channel 108.

The connecting channel 166 comprises a first subregion 183 a in which a flow cross section 984 of the connecting channel 166 is at least approximately constant.

For example, the first subregion 183 a is spatially a region pointing toward the first side 80 of the suction apparatus 10 and/or the first subregion 183 a is arranged, at least in sections, between the suction blower device 22 and the first side 80 of the suction apparatus 10 with respect to the transverse direction 174. The first subregion 183 a is a region following the exit 170 and/or the exit channel 172 with respect to the main flow direction 168.

The exit channel 172 is arranged spatially between the suction blower device 22 and the first subregion 183 a of the connecting channel 166 with respect to the transverse direction 174.

The connecting channel 166 extends in the inside space 70 of the suction head housing 68 from the first subregion 183 a into a second subregion 183 b of the connecting channel 166, wherein the flow cross section 984 of the connecting channel 166 within the second subregion 183 b expands compared with the flow cross section 984 within the first subregion 183 a.

For example, the flow cross section 984 of the connecting channel 166 is greatest at an end region 183 c of the second subregion 183 b located toward the first channel 106 and/or the second channel 108.

For example, the flow cross section 984 of the second subregion 183 b of the connecting channel 166 is smallest at an end region 183 d of the second subregion 183 b of the connecting channel 166 pointing toward the first subregion 183 a.

The second subregion 183 b is, for example, spatially a region pointing toward the second side 90 and/or is, for example, arranged, at least in sections, between the suction blower device 22 and the second side 90 of the suction apparatus 10 with respect to the transverse direction 174.

In particular, the second subregion 183 b is a region pointing toward the first channel 106 and/or the second channel 108. For example, the connecting channel 166 in the second subregion 183 b opens into the first channel 106 and/or the second channel 108.

The air guiding elements 178 are arranged in the second subregion 183 b of the connecting channel 166 and/or are arranged at a distance from the respective air inlet openings 164 and 160 of the first channel 106 and the second channel 108, respectively.

In one embodiment, associated with the first air outlet 102 is a connecting device 184, which is arranged and/or formed, e.g., at least partially on the first air outlet 102 and/or the first channel 106. A fluidic releasable connection between the first air outlet 102 and an adapter device 186 can be produced by the connecting device 184.

For example, one or more rib elements 986 are arranged on the first air outlet 102 and/or on the first channel 106 for supporting and/or guiding the adapter device 186. By way of the rib elements 986, the adapter deice 186 can, for example, be arranged in a defined position on the first air outlet 102 and/or the first channel 106 and/or be inserted into the first air outlet 102 and/or the first channel 106.

For example, the rib elements 986 are oriented at least approximately in parallel to the first longitudinal central axis 110 of the first air outlet.

The adapter device 186 is part of a pipe element 186 a of the suction apparatus 10 (indicated in FIGS. 2 and 4 ). For example, the pipe element 186 a is a suction hose of the suction apparatus 10 or part of a suction hose. An air flow can thereby be coupled into the pipe element 186 a, thereby making it possible to achieve, e.g., a blowing function using the pipe element 186 a.

The suction apparatus 10 comprises a closure device 185 associated with the second air outlet 104, which is able to adopt a first state and a second state. The closure device 185 is set up and configured in such a way that a decoupling of process air through the second air outlet 104 is enabled in the first state of the closure device 185 and a decoupling of process air through the second air outlet 104 is blocked in the second state of the closure device 185.

In the embodiment shown, the closure device 185 is controllable using the adapter device 186. The closure device 185 adopts the first state when the adapter device 186 is separated from the connecting device 184 and adopts the second state when the adapter device 186 is properly connected to the connecting device 185.

The adapter device 186 comprises, in particular, a shape that corresponds to the first air outlet 102 and/or the first channel 106. The adapter device 186 can be inserted, for example, through the first air outlet 102 into the first channel 106 or be arranged in such a way that the first channel 106 is inserted into the adapter device 186.

For example, the adapter device 186 has a cylindrical shape. For example, a flow space 187 for air is formed within the adapter device 186.

When the adapter device 186 is properly connected to the connecting device 184, the adapter device 186 is arranged, in particular, at least partially in the inside space 70 of the suction head housing 68.

For example, the adapter device 186 comprises a mechanical connecting element 188, for example a latching element, wherein a releasable connection between the adapter device 186 and the connecting device 184 is producible by the connecting element 188.

The channel device 96 and/or the closure device 185 are set up and configured in such a way that within the suction head housing 68, the second channel 108 is closed in a fluid-tight manner to the connecting channel 166 when the adapter device 186 is properly connected to the connecting device 184. In this case, process air to be decoupled by the channel device 96 is decoupled exclusively via the first channel 106 and the first air outlet 102.

When the adapter device 186 is separated from the connecting device 184, both the first channel 106 and the second channel 108 are fluidically connected to the connecting channel 166 in the inside space 70, so that a decoupling of process air can take place both by way of the first channel 106 and the first air outlet 102 and by way of the second channel 108 and the second air outlet 104.

Associated with the closure device 185 is a wall element, which is able to adopt a first position in which the air inlet opening 160 of the second channel 107 is unblocked and which is able to adopt a second position in which the air inlet opening 160 is blocked by the wall element 189.

In the embodiment shown, the wall element associated with the closure device 185 is formed on the adapter device 186. The air inlet opening 160 of the second channel 108 is blocked and/or closed by a wall element 189 of the adapter device 186 when the adapter device 186 is properly connected to the connecting device 184. For example, the wall element 189 is then arranged in the inside space 70 of the suction head housing 68 and/or covers the air inlet opening 160 (second position of the wall element 189).

When the adapter device 186 is separated from the connecting device 184, the air inlet opening 160 is unblocked (first position of the wall element 189).

The wall element 189 has, e.g., a cylindrical shape and/or delimits the flow space 187 for air formed within the adapter device 186.

In particular, the connecting device 184 for the first air outlet 102 is of identical configuration as the connecting device 36 for the suction port 34, so that, for example, the pipe element 186 a can also be fluidically releasably connected to connecting device 36 for the suction port 34 by the adapter device 186.

A midpoint 190 and/or center of gravity of the suction blower device 22 is arranged on a first side 194 with respect to a midplane 192 of the suction apparatus 10 extending through the longitudinal central axis 28. The connecting channel 166 is arranged substantially on a second side 196, wherein the second side 196 is located opposite the first side 194 with respect to the midplane 192.

The first air outlet 102 is arranged on the second side 196 with respect to the midplane 192 and the second air outlet 104 is arranged on the first side 194 with respect to the midplane 192.

The suction apparatus 10 comprises a gripping bar 202, which is pivotably mounted on the suction head 20 and which is arranged in an upper end region 204 of the suction apparatus 10 and/or of the suction head 20 with respective to the height direction 32. For example, the gripping bar 202 is of U-shaped configuration.

The gripping bar 202 is pivotable from a first position 203 a (cf. FIG. 2 ) into a second position 203 b (cf. FIG. 1 ). In the first position 203 a, the gripping bar 202, when the suction apparatus 10 is properly positioned in an operating state, is aligned approximately horizontally. In the second position 203 b, the gripping bar 202 is aligned approximately vertically.

The gripping bar 202 forms, in particular, an outer contour of the suction head housing 68 at least in sections when the gripping bar is located in the first position 203 a.

In the embodiment shown, the gripping bar 202 in the first position 203 a is oriented at least approximately in parallel to the top side 78 of the cover element 76.

For example, the gripping bar 202 in the second position 203 b lies at least approximately in a midplane extending through the longitudinal central axis 28 of the suction apparatus 10 (not shown).

When the gripping bar 202 is located in the first position 203 a, an upper region 205 of he gripping bar 202 with respect to the height direction 32 is at least approximately at the height of the top side 78.

The gripping bar 202 comprises a first leg element 206 and a second leg element 208, wherein the first leg element 206 and the second leg element 208 are connected to one another by a grip element 210.

The first leg element 206 and the second leg element 208 are each connected to the suction head housing 68 by a pivot joint 212. The pivot joints 212 are arranged in the upper end region 204 of the suction head 20.

For example, the first leg element 206 is pivotably connected to the suction head 20 by a first pivot joint 212 a and the second leg element 208 is pivotably connected to the suction head 20 by a second pivot joint 212 b.

With respect to the transverse direction 174, which lies in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28, the pivot joints 212 are arranged in an outside region 213 and/or rim region of the suction head housing 68. For example, the pivot joints 212 lie at least approximately in a midplane extending through the longitudinal central axis 28 (not shown).

The outside region 214 and/or rim region are/is understood to mean a region located outside on the suction head housing 68 with respect to a direction oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28.

Associated with the holding device 92 is a spatial receiving region 216, which is formed on an outside 218 of the suction head housing 68. The gripping bar 202 adjoins the receiving region 216 and/or delimits the receiving region 216 when the gripping bar 202 is located in the first position 203 a.

The outside 218 is understood to means a side of the suction head housing 68 and/or the suction head 20 that faces away form the inside space 70. In particular, the outside 218 is a side that faces toward an operator of the suction apparatus 10.

The holding device 92 and the receiving region 216 are arranged between the channel device 96 and the cover element 76 with respect to the height direction 32.

The holding device 92 and the receiving region 216 are, in particular, set up and configured to hold the cable 94 and/or to partially accommodate the cable 94, for example in a wound up state.

In the first position 203 a, the gripping bar 202 surrounds the cover element 76 in a U-shaped and/or semicircular manner. The cover element 76 is located further inward than the gripping bar 202 with respect to the transverse direction 174.

For example, the gripping bar 202 adjoins the cover element 76 in the first position 203 a. For example, the grip element 210 is arranged on the second side 90 of the suction apparatus 10 in the first position 203 a.

Using the grip element 210, the gripping bar 202 is pivotable by a user from the first position 203 a into the second position 203 b (and vice versa). In the second position 203 b, the grip element 210 is arranged at a distance from the top side 78 of the suction head housing 68.

The grip element 210 is grippable and/or graspable by the operator. For example, the suction apparatus 10 can be held and/or moved by gripping the grip element 210.

A spatial gripping region 220 is associated with the grip element 210 of the gripping bar 202 when the gripping bar 202 is located in the first position 203 a. The grip element 210 can thereby be gripped and/or grasped by an operator in the first position 203 a. The gripping region 220 serves, in particular, to accommodate a hand and/or fingers of an operator when said operator grips the grip element 210 in the first position 203 a.

The gripping region 220 is, in particular, formed at least partially in the receiving region 216.

Furthermore, the gripping region 220 extends at least partially between the grip element 210 and the outside 218 of the suction head housing 68. For example, a portion of the gripping region 220 extends between the grip element 210 and a wall element 221 of the cover element 76 that faces toward the grip element 210. Said wall element 221 is, for example, oriented at least approximately in parallel or transversely to the longitudinal central axis 28 of the suction apparatus 10.

When the gripping bar 202 is located in the first position 203 a, an upper opening 222 is formed between the grip element 210 of the gripping bar 202 and the outside 218 of the suction head housing 68. The upper opening 222 is accessible from above with respect to the height direction 32 and/or is arranged at least approximately at the height of the top side 78 of the cover element 76 with respect to the height direction 32.

Furthermore, a first lateral opening 224 and a second lateral opening 226 spaced at a distance from the first lateral opening 224 in the peripheral direction 100 are formed between the grip element 210 and the outside 218 when the gripping bar 202 is located in the first position 203 a. The first lateral opening 224 and the second lateral opening 226 are arranged on the second side 90 of the suction apparatus 10 and/or are accessible from the second side 90 of the suction apparatus 10. The holding device 92 is arranged between the first lateral opening 224 and the second lateral opening 226.

In particular, the first lateral opening 224 and the second lateral opening 226 each extend in an area that is oriented transversely and, in particular, perpendicularly to an area in which the upper opening 222 extends.

For example, the first lateral opening 224 and the second lateral opening 226 extend between a bottom portion 228 formed on the outside 218 of the suction head housing 68, which delimits the receiving region 216, and the grip element 210 of the gripping bar 202.

For example, the upper opening 222 extends between the grip element 210 and the wall element 221 of the cover element 76.

The bottom portion 228 is formed on a wall element 229 of the suction head housing 68, which is arranged between the channel device 96 and the receiving region 216 in the height direction 32. The holding device 92 is arranged on the wall element 229.

When the gripping bar 202 is located in the first position 203 a, the receiving region 216 is accessible via the upper opening 222, the first lateral opening 224, and the second lateral opening 226, for example for a hand of an operator for gripping the grip element 210.

Formed on the outside 218 of the suction head housing 68 is an, in particular, planar abutment region 230, which adjoins the receiving region 216 at least in sections and/or which transitions into the receiving region 216. In the first position 230 a, the gripping bar 202 abuts against the abutment region 230 at least in sections.

The abutment region 230 is not necessarily of spatially contiguous configuration. In the example shown, the abutment region 230 comprises a first subregion 230 a for the abutment of the first leg element 206 of the gripping bar 202 and a second subregion 230 b for the abutment of the second leg element 208. For example, the first subregion 230 a and the second subregion 230 b are arranged opposite one another on the suction head housing. For example, the first subregion 230 a and the second subregion 230 b are arranged on different and/or opposite sides of the cover element 76 of the suction head housing 68.

The abutment region 230 lies, for example, in a plane oriented transversely and, in particular, perpendicularly to the longitudinal central axis 28. The abutment region 230 extends in the outside region 214 and/or rim region of the suction head housing 68 between the pivot joints 212 and the receiving region 216.

For example, the abutment region 230 and/or the first subregion 230 a and/or the second subregion 230 b transition into a transverse portion 232 formed on the outside 218, which delimits the receiving region 216. This transverse portion 232 is oriented transversely to the abutment region 230 and/or to the bottom portion 228. The transverse portion 232 is arranged between the bottom portion 228 and the abutment region 230.

For example, a smallest angle between the transverse portion 232 and the bottom portion 228 is about 65°.

The holding device 92 and the associated receiving region 216 are configured at least approximately mirror symmetrical to a plane, for example mirror symmetrical to the midplane 192 extending through the longitudinal central axis 28.

The holding device 92 and the associated receiving region 216 are arranged in the outside region 214 and/or rim region of the suction head housing 68 with respect to the transverse direction 174, wherein the holding device 92 is arranged on an outer contour 234 of the suction head housing 68.

The outer contour 234 is a boundary line and/or boundary face that is located outside on the suction head housing 68 with respect to the transverse direction 174 and that is oriented, for example, in the peripheral direction 100. For example, the outer contour 234 comprises at least approximately a constant curvature and/or a constant radius of curvature.

For example, the outer contour 234 extends through outer sides 235 of the suction head housing 68 located in the outside region 214 and/or rim region 214, which adjoin the receiving region 216 in the peripheral direction.

The receiving region 216 is configured as an indentation with respect to the outer contour 234.

The receiving region 216 extends inwardly commencing from the outer contour 234 and/or from the holding device 92 (toward the cover element 76 and/or toward the longitudinal central axis 28).

The holding device 92 extends in the height direction 32 from a lower end 236 to an upper end 238 of the receiving region 216. For example, the bottom portion 228 is located at the height of the lower end 236 and the transverse portion 232 extends between the lower end 236 and the upper end 238.

For example, the holding device 92 is configured as a hook element 239 or comprises a hook element 239.

The holding device 92 comprises a second region 240, which is arranged in an upper end region 242 of the holding device 92. The second region 240 is connected to a first region 244 of the holding device 92, wherein the first region 244 is connected to the suction head housing 68.

For example, the second region 240 is connected to the first region 244 by means of a screw connection. The first region 244 is, for example, connected to the suction head housing 68 in one piece.

The second region 240 projects beyond the first region in the transverse direction 174. For example, the second region 240 projects beyond the first region 244 in the transverse direction 174 toward the cover element 76 and/or toward the longitudinal central axis 28.

The holding device 92 has width B1, wherein a width direction is oriented in the peripheral direction 100 of the suction head housing 68. The width B1 is greatest at a lower end 246 of the holding device 92 and is smallest at an upper end 248 of the holding device 92.

The lower end 246 is located at the height of the lower end 236 of the receiving region 216 and the upper end 248 is located at the height of the upper end 238 of the receiving region 216.

The holding device 92 comprises an upper end face 250, which is oriented at least approximately in parallel to the abutment region 230. For example, the upper end face is located at least approximately at the height of the abutment region 230 with respect to the height direction 32. For example, the abutment region 230 and the upper end face 250 are lie at least approximately in a plane.

For example, the grip element 210 of the gripping bar 202 abuts against the upper end face 250 when the gripping bar 202 is located in the first position 203 a. For example, the upper end face 250 forms an abutment region for the gripping bar 202 and/or the grip element 210.

The holding device 92 comprises an outside 252, which faces away from the receiving region 216 and/or the longitudinal central axis 28. The outside 252 is lies, for example, in the outer contour 234.

Provision may be made that a locking device 254 is associated with the gripping bar 202, by which the gripping bar 202 can be fixed and/or snapped in and/or latched in the first position 203 a. For example, the gripping bar 202 can be fixed and/or snapped in and/or latched in the first position 203 a on the holding device 92 by the locking device 254.

In one embodiment, associated with the gripping bar 202 is a spring device 256, by which the gripping bar 202 can be transferred from the first position 203 a into the second position 203 b in the direction of or counter to a spring force exerted by the spring device 256. For example, the spring device 256 is arranged or formed on at least one of the pivot joints 212.

The first pivot joint 212 a comprises a pin element 258, which is arranged and/or formed on the first leg element 206. When the gripping bar 202 is properly positioned on the suction apparatus 10, this pin element 258 extends from the first leg element 206 in the direction of the cover element 76 of the suction head 20. For example, the pin element 258 projects commencing from the first leg element 206 in the direction of the cover element 76.

For example, the first pivot joint 212 a and/or the pin element 258 are arranged on an end 259 and/or end region of the gripping bar 202 located on the cover element 76.

Furthermore, the first pivot joint 212 a comprises a sleeve element 260 for rotatably mounting the pin element 258. For example, the pin element 258 can be accommodated by the sleeve element 260 and/or the pin element 258 is insertable into the sleeve element 260.

For example, the pin element 258 is arrangeable on the sleeve element 260 and/or is insertable into the sleeve element 260 toward the cover element 76.

The sleeve element 260 is arranged and/or formed on the cover element 76. For example, the sleeve element 260 is configured as an indentation on a wall element 262 of the cover element 76 facing toward the first leg element 206 and/or the pin element 258.

Adjoining the wall element 262, for example, in the peripheral direction 100 is the wall element 221 of the cover element 76, which faces toward the grip element 220 when the gripping bar 202 is located in the first position 203 a.

In the embodiment depicted, the pivot joint 212 a is of identical configuration as the second pivot joint 212 b.

By way of the first pivot joint 212 a and/or the second pivot joint 212 b, the gripping bar 202 is pivotable about a pivot axis 264 and/or rotational axis, which is oriented, for example, transversely and, in particular, perpendicularly to the longitudinal central axis 28 and/or to the height direction 32.

In one embodiment, a delimiting element 266 associated with the first pivot joint 212 a, by which a movement of the first leg element 206 in a direction away from the cover element 76 is blocked when the gripping bar 202 is located in the second position 203 b. Correspondingly, provision may be made that a delimiting element 266 is associated with the second pivot joint 212 b.

In the embodiment shown, the delimiting element 266 is arranged on the suction head 20 at a distance from the cover element 76 and/or at a distance from the sleeve element 260. The delimiting element 266 is arranged in a region 268 located at the pivot joint 212 a.

For example, the delimiting element 266 is arranged at the first subregion 230 a of the abutment region 230. For example, the delimiting element 266 is configured as a raised portion.

The gripping bar 202 comprises an inner wall element 268 that faces toward the cover element 76 and an outer wall element 270 that faces away from the cover element 76. The pin element 258 is arranged, in particular, on the inner wall element 268.

Formed between the inner wall element 268 and the outer wall element 270 is, in particular, an interspace 272 which, in particular, is open toward a bottom side 274 of the gripping bar 202, wherein the bottom side 274 faces toward the abutment region 230 when the gripping bar is located in the first position 203 a.

Arranged in the interspace 272 are, for example, one or more rib elements 276, which are arranged between the inner wall element 268 and the outer wall element 270. For example, the rib elements 276 are oriented transversely and, in particular, perpendicularly to the inner wall element 268 and/or the outer wall element 270.

The delimiting element 266 is arranged, at least in sections, in the intermediate space 272 and/or is arranged, at least in sections, between the inner wall element 268 and the outer wall element 270.

When the gripping bar 202 is located in the second position 203 b, the delimiting element 266 is arranged between the outer wall element 270 and a stop element 278. This stop element 278 can abut against the delimiting element 266 and thereby prevents a movement of the first leg element 206 in a direction away from the cover element 76 when the gripping bar 202 is located in the second position.

As a result of the cooperation of the delimiting element 266 and the stop element 278, a movement of the first leg element 206 in a direction away from the cover element 76 is prevented when the gripping bar 202 is located in the second position 203 b. It is thereby prevented that the pin element 258 in the second position 203 b moves out of the sleeve element 260.

The stop element 278 can be pivoted and/or rotated about the pivot axis 267 relative to the delimiting element, such that a movement of the gripping bar 202 from the second position 203 b into the first position 203 a is possible.

For example, the stop element 278 is arranged in the interspace 272 between the outer wall element 270 and the inner wall element 268. For example, the stop element 278 is arranged on a rib element 276 a, which is oriented transversely and, in particular, perpendicularly to the inner wall element 268 and/or the outer wall element 270. The stop element 278 is oriented, for example, transversely and, in particular, perpendicularly to the rib element 276 a.

Provision may be made that a recess 280 is formed on the rib element 276 a, wherein the delimiting element 266 can be passed or is passed, at least in sections, through the recess 280 when the gripping bar 202 is moved from the second position 203 b into the first position 203 a.

In the first position 203 a, the delimiting element 266 is arranged at a distance from the stop element 278. The stop element 278 can then be moved relative to the delimiting element 266, in particular without being hindered by the delimiting element 266. For example, the gripping bar 202 in the first position 203 a is movable between a first position in which the delimiting element 266 abuts against the outer wall element 270 and a second position in which the delimiting element 266 abuts against the inner wall element 268 (cf. FIGS. 14 and 15 ).

In the first position, the pin element 258 is arranged in the sleeve element 260. In the second position, the pin element 258 is arranged outside the sleeve element 260. The gripping bar 202 in the first position 203 a can thereby be mounted to or dismounted from the suction head 20 in a toolless manner 20.

The suction apparatus in accordance with the invention functions as follows:

For performing a suction operation using the suction apparatus 10, an operator connects, for example, the suction hose of the suction apparatus 10 to the suction port 34. The user then switches on the suction apparatus 10, for example by way of the operating element device 82. Corresponding parameters of the suction apparatus can, for example, be controlled by the operator by way of the operating element device 82.

(Dirty) process air is coupled through the suction port 34 into the receiving space 14 of the suctioned material container 12 by the suction blower device 22.

The dirt content of the coupled process air is discharged into the receiving space 14 of the suctioned material container 12 and/or on the dirty side 64 of the filter unit 56.

(Clean) process air is coupled into the suction blower device 22 via the clean side 60 of the filter unit 56. This process air is then decoupled from the suction head 20 via the first air outlet 102 and the second air outlet 104 by the channel device 96.

For emptying the suctioned material container 12, the fixing device 52 is opened and then the suction head 20 is lifted upwardly from the suctioned material container 12 using the gripping bar 202. For this purpose, the gripping bar 202 is transferred by a user into the second position 203 b. After emptying the suctioned material container 12, the suction head 20 is placed back onto the suctioned material container 12 using the gripping bar 202 and then is fixed to said suctioned material container 12 with the fixing device 52.

For performing a blowing operation using the suction apparatus 10, the suction hose is connected to the connecting device 184 of the first air outlet 102 by the adapter device 186.

As a result, the closure device 185 is transferred from the first state into the second state, such that no process air is decoupled from the suction head 20 through the second air outlet 104. The decoupling of the process air then takes place via the first air outlet 102 and, in particular, exclusively via the first air outlet 102.

The process air is thereby coupled into the suction hose and decoupled at an end of the suction hose, so that the blowing function is usable by the user using the suction hose.

For storing the suction apparatus 10, the suction hose is, for example, released from the suction port 34 and/or from the connecting device 184. For example, the suction hose may be fixed to and/or stored on the suction head 20 using the holding element 79.

The cable 94 of the suction apparatus 10 can be held and/or stored on the suction head 20 using the holding device 92 and the receiving region 216 associated with the holding device 92.

For arranging the cable 94 in the receiving region 216, the operator transfers the gripping bar 202 into the second position 203 b so that the receiving region 216 on the suction head 20 is accessible from above (see e.g. FIG. 1 ). In this state, the cable 94 can be arranged in the receiving region 216 and be, for example, rolled up and/or arranged as a loop there.

Then, the gripping bar 202 is transferred by the operator, for example, into the first position 203 a, so that the gripping bar 202 adjoins the receiving region 216. In this position of the gripping bar 202, a movement of the cable 94 arranged in the receiving region 214 in a direction upward and in a transverse direction 174 outwards is blocked (see e.g. FIG. 2 ).

For removing the cable 94 from the receiving region 216, the operator transfers the gripping bar from the first position 203 a into the second position 203 b, so that a removal of the cable 94 upwards out of the receiving region 216 is made possible (see e.g. FIG. 1 ).

For dismounting the gripping bar 202 without tools, it is transferred into the first position 203 a. The first leg element 206 is pushed outwardly away from the cover element 76 by an operator until the delimiting element 266 abuts against the inner wall element 268 and/or until the pin element 258 has receded from the sleeve element 260 (cf. FIG. 15 ). The first leg element 206 can then be moved upwards away from the suction head when the pin element 258 is decoupled. This is then repeated accordingly with the second leg element 208 when the first leg element 206 is dismounted, so that the gripping bar 202 is released from the suction head 20. For toolless assembly, the stated steps are performed accordingly in reverse order.

REFERENCE NUMERAL LIST

-   A1 distance -   B1 width -   10 suction apparatus -   12 suctioned material container -   14 receiving space -   16 bottom element -   18 wall element -   20 suction head -   22 suction blower device -   24 motor -   26 blower unit -   28 longitudinal central axis -   30 direction of gravity -   32 height direction -   34 suction port -   36 connecting device -   38 opening -   40 stand -   42 receiving region -   43 shoulder -   44 rollers -   46 suctioned material container lid -   48 bottom side -   50 support region -   52 fixing device -   54 latching element -   56 filter unit -   58 main flow direction -   60 clean side -   62 inlet -   64 dirty side -   66 filter holder -   68 suction head housing -   70 inside space -   72 base element -   74 hood element -   76 cover element -   77 accessory holding element -   78 top side -   79 holding element -   80 first side -   82 operating element device -   84 cooling air conducting device -   86 cooling air space -   88 opening device -   90 second side -   92 holding device -   94 cable -   96 channel device -   98 cable outlet -   100 peripheral direction -   101 air outlet -   102 first air outlet -   104 second air outlet -   106 first channel -   108 second channel -   110 first longitudinal central axis -   112 second longitudinal central axis -   114 angle -   116 outer contour -   118 flow space -   120 wall element -   122 flow cross section -   124 outer contour -   126 first edge portion -   128 second edge portion -   130 third edge portion -   132 fourth edge portion -   134 first subportion -   136 second subportion -   138 first midpoint -   140 second midpoint -   142 lower end -   144 upper end -   146 lower end -   148 upper end -   149 flow space -   150 first wall element -   152 second wall element -   154 flow cross section -   156 end -   158 end -   160 air inlet opening -   162 end -   164 air inlet opening -   166 connecting channel -   168 main flow direction -   170 exit -   172 exit channel -   174 transverse direction -   176 transition region -   178 air guiding element -   178 a air guiding element -   178 b air guiding element -   180 longitudinal central axis -   182 angle -   183 a first subregion -   183 b second subregion -   183 c end region -   183 d end region -   984 flow cross section -   184 connecting device -   185 closure device -   186 adapter device -   986 rib element -   186 a pipe element -   187 flow space -   188 connecting element -   189 wall element -   190 midpoint -   192 midpoint -   194 first side -   196 second side -   202 gripping bar -   203 a first position -   203 b second position -   204 upper end region -   205 upper region -   206 first leg element -   208 second leg element -   210 grip element -   212 pivot joint -   212 a first pivot joint -   212 b second pivot joint -   214 outside region/rim region -   216 receiving region -   218 outside -   220 gripping region -   221 wall element -   222 upper opening -   224 first lateral opening -   226 second lateral opening -   228 bottom portion -   229 wall element -   230 abutment region -   230 a first subregion -   230 b second subregion -   232 transverse portion -   234 outer contour -   235 outer side -   236 lower end -   238 upper end -   239 hook element -   240 second region -   242 upper end region -   244 first region -   246 lower end -   248 upper end -   250 upper end face -   252 outside -   254 locking device -   256 spring device -   258 pin element -   259 end -   260 sleeve element -   262 wall element -   264 pivot axis -   266 delimiting element -   268 inner wall element -   270 outer wall element -   272 interspace -   274 bottom side -   276 rib element -   276 a rim element -   278 stop element -   280 recess 

1. A suction apparatus, comprising a suction head, a suctioned material container for accommodating suctioned material, a suction blower device arranged on the suction head, a channel device associated with the suction blower device for conducting process air at the suction head, wherein the channel device comprises at least one first air outlet and a second air outlet, and wherein the channel device comprises a first channel associated with the first air outlet for supplying air to the first air outlet and a second channel associated with the second air outlet for supplying air to the second air outlet, and a pipe element with an adapter device, wherein the adapter device is fluidically releasably connectable or connected to a suction port of the suction apparatus for performing a suction operation and the adapter device is fluidically releasably connectable or connected to the first air outlet for performing a blowing operation, and wherein an air inlet opening of the second channel for supplying process air from the suction blower device to the second air outlet is closed by at least one wall element of the adapter device when the adapter device is properly connected to the first air outlet.
 2. The suction apparatus in accordance with claim 1, wherein the air inlet opening of the second channel is arranged in a transition region between a connecting channel of the channel device and the second channel, wherein process air is suppliable from the suction blower device to at least one of the first channel and the second channel by the connecting channel.
 3. The suction apparatus in accordance with claim 1, wherein the air inlet opening of the second channel is unblocked when the adapter device is separated from the first air outlet.
 4. The suction apparatus in accordance with claim 1, wherein at least one of i) the at least one wall element of the adapter device has a curved shape and ii) the at least one wall element lies in a geometrical cylinder portion.
 5. The suction apparatus in accordance with claim 1, comprising at least one of i) a connecting device, by which the adapter device is at least one of a) releasably fixable and b) releasably latchable to the first air outlet, and ii) comprising a connecting device, by which the adapter device is at least one of i) releasably fixable and ii) releasably latchable to the suction port.
 6. The suction apparatus in accordance with claim 1, wherein at least one rib element for at least one of supporting and guiding the adapter device is arranged at least one of i) on the first air outlet and ii) on the first channel.
 7. The suction apparatus in accordance with claim 1, wherein at least one of the following applies: within the suction head, the second channel is in fluidic connection with a connecting channel for supplying process air from the suction blower device to at least one of the first channel and the second channel when the adapter device is separated from the first air outlet; within the suction head, the second channel is closed in a fluid-tight manner relative to a connecting channel for supplying process air from the suction blower device to at least one of the first channel and the second channel when the adapter device is properly connected to the first air outlet; within the suction head, the first channel is in fluidic connection with a connecting channel for supplying process air from the suction blower device to at least one of the first channel and the second channel when the adapter device is separated from the first air outlet; within the suction head, the first channel is in fluidic connection with a connecting channel for supplying process air from the suction blower device to at least one of the first channel and the second channel when the adapter device is properly connected to the first air outlet.
 8. The suction apparatus in accordance with claim 1, wherein a smallest angle between a first longitudinal central axis of the first channel and a second longitudinal central axis of the second channel is at least one of i) at least 40° and ii) at most 70°.
 9. The suction apparatus in accordance with claim 8, wherein a smallest angle between the first longitudinal central axis of the first channel and the second longitudinal central axis of the second channel is at least one of i) at least 50° and ii) at most 60°.
 10. The suction apparatus in accordance with claim 1, wherein a smallest angle between a main flow direction of process air conducted through the first channel and a main flow direction of process air conducted through the second channel is at least one of i) at least 40° and ii) at most 70° and, in particular, at least one of i) at least 50° and ii) at most 60°.
 11. The suction apparatus in accordance with claim 1, wherein at least one of the following applies: a first longitudinal central axis of the first channel and a second longitudinal central axis of the second channel are at least approximately in a common plane, wherein the plane is oriented transversely to at least one of a longitudinal central axis and a height direction of the suction apparatus; a main flow direction of process air conducted through the first channel and a main flow direction of process air conducted through the second channel are at least approximately in a common plane, wherein the plane is oriented transversely to at least one of a longitudinal central axis and a height direction of the suction apparatus.
 12. The suction apparatus in accordance with claim 1, wherein at least one of the following applies: an outer contour of the first air outlet is of at least approximately circular configuration; a wall element of the first channel, which delimits a flow space for air of the first channel, is of cylindrical configuration at least in sections and/or in segments.
 13. The suction apparatus in accordance with claim 1, wherein the first air outlet and the second air outlet are spaced at a distance from one another in the circumferential direction of the suction head, and in particular wherein a smallest distance between the first air outlet and the second air outlet is at least one of i) at least 1 cm and ii) at most 7 cm.
 14. The suction apparatus in accordance with claim 1, wherein at least one of the following applies: a first midpoint of an outer contour of the first air outlet and a second midpoint of an outer contour of the second air outlet are at least approximately at the same height with respect to a height direction of the suction apparatus; a lower end of the air outlet and a lower end of the second air outlet are at least approximately at the same height with respect to a height direction of the suction apparatus; an upper end of the first air outlet and an upper end of the second air outlet are at least approximately at the same height with respect to a height direction of the suction apparatus; the second air outlet has an at least 10% and, in particular, at least 15% and, in particular, at least 20% greater cross sectional area than the first air outlet.
 15. The suction apparatus in accordance with claim 1, wherein at least one of the following applies: an outer contour of the second air outlet is of substantially rectangular configuration; an outer contour of the second air outlet lies in a geometrical rectangle at least in sections; at least three of four edge portion of the outer contour of the second air outlet lie in a geometrical rectangle; a fourth edge portion of the outer contour of the second air outlet comprises a first subportion and a second subportion adjoining the first subportion, wherein the second subportion is oriented transversely to the first subportion; at least one edge portion of the outer contour of the second air outlet is oriented transversely to a height direction of the suction apparatus; an edge portion of the outer contour of the second air outlet that points toward the first air outlet is of rectilinear configuration.
 16. The suction apparatus in accordance with claim 1, wherein the first channel and the second channel comprise flow spaces for air that are fluidically separated or fluidically separable from one another.
 17. The suction apparatus in accordance with claim 1, wherein a flow cross section of the first channel is at least approximately constant.
 18. The suction apparatus in accordance with claim 1, wherein a flow cross section of the second channel expands toward the second air outlet, wherein the flow cross section of the second channel at least one if i) is greatest at an end of the second air outlet that points toward the second air outlet and ii) is smallest at an end of the second channel that points away from the second air outlet.
 19. The suction apparatus in accordance with claim 1, wherein the channel device comprises a connecting channel for producing a fluidic connection between the exit of the suction blower device and at least one of the first air outlet and the second air outlet, wherein air to be decoupled from the suction head by means of the connecting channel is divided or divisible to at least one of the first channel and the second channel.
 20. The suction apparatus in accordance with claim 19, wherein at least one of the following applies: the connecting channel is arranged in an inside space of the suction head; the connecting channel comprises a first subregion in which a flow cross section of the connecting channel is at least approximately constant; the connecting channel comprises a second subregion adjoining a first subregion, wherein the second subregion points toward at least one of the first channel and the second channel and wherein a flow cross section of the connecting channel in the second subregion expands toward at least one of the first channel and the second channel; the connecting channel surrounds the suction blower device in sections; the connecting channel has a shape that is curved toward a longitudinal central axis of the suction apparatus, wherein the longitudinal central axis is oriented in a height direction of the suction apparatus; the connecting channel is arranged between at least one of an exit and exit channel of the suction blower device and at least one of the first channel and the second channel with respect to a main flow direction of air decoupled from the suction blower device; a transition region for air is formed between at least one of an exit and exit channel of the suction blower device and the connecting channel; a transition region for air formed between at least one of an exit and exit channel of the suction blower device and the connecting channel is configured in such a way that a main flow direction of air decoupled from the suction blower device reverses in the transition region and, in particular, reverses by at least approximately 180°.
 21. The suction apparatus in accordance with claim 19, comprising at least one air guiding element for distributing air to be decoupled from the suction head to the first channel and the second channel, wherein the at least one air guiding element is arranged in the connecting channel or is associated with the connecting channel.
 22. The suction apparatus in accordance with claim 21, wherein at least one of the following applies: the at least one air guiding element is oriented transversely to the first channel; a smallest angle between a longitudinal central axis of the at least one air guiding element and a first longitudinal central axis of the first channel is at least one of i) at least 20° and ii) at most 50°, and in particular at least one of i) at least 30° and ii) at most 40°; the at least one air guiding element has a shape that is curved toward to longitudinal central axis of the suction apparatus, wherein the longitudinal central axis is oriented in the height direction of the suction apparatus; the at least one air guiding element is arranged in at least one of a subregion and end region of the connecting channel that points toward at least one of the first channel and second channel; an air guiding element and a further air guiding element spaced at a distance from the air guiding element are provided, wherein the air guiding element and the further air guiding element are oriented, in particular, at least approximately in parallel to one another.
 23. The suction apparatus in accordance with claim 1, wherein at least one of a midpoint and center of gravity of the suction blower device is arranged on a first side with respect to a midplane extending through at least one of a longitudinal central axis and height direction of the suction apparatus and wherein a connecting channel for supplying air from the suction blower device to at least one of the first air outlet and the second air outlet is arranged, at least in sections, on a second side opposite the first side with respect to the midplane.
 24. The suction apparatus in accordance with claim 23, wherein at least 60% and, in particular, at least 80% of a cross sectional area of the connecting channel is on the second side.
 25. The suction apparatus in accordance with claim 1, wherein the second air outlet is arranged on a first side with respect to a midplane of the suction apparatus extending through at least one of a longitudinal central axis and height direction of the suction apparatus and wherein the first air outlet is arranged on a second side opposite the first side with respect to the midplane.
 26. The suction apparatus in accordance with claim 1, wherein a first longitudinal central axis of the first channel is oriented at least approximately in parallel to a plane extending through a height direction of the suction apparatus.
 27. The suction apparatus in accordance with claim 1, wherein at least one of i) a suction port associated with the suction blower device and ii) an opening device for cooling air associated with the suction blower device and iii) an operating element device of the suction apparatus are arranged on a first side of the suction apparatus.
 28. The suction apparatus in accordance with claim 1, wherein at least one of i) the first air outlet and ii) the second air outlet and iii) a receiving region of the suction apparatus for accommodating a cable and iv) a holding device of the suction apparatus for a cable are arranged on a second side of the suction apparatus, which faces away from a first side of the suction apparatus.
 29. The suction apparatus in accordance with claim 1, wherein at least one of i) the channel device and ii) the first air outlet and iii) the second air outlet are at least one of i) arranged below a receiving region of the suction apparatus for accommodating a cable and ii) below a holding device of the suction apparatus for a cable with respect to a height direction of the suction apparatus.
 30. The suction apparatus in accordance with claim 1, wherein at least one of the first air outlet and the second air outlet are at least one of arranged and formed on the suction head.
 31. The suction apparatus in accordance with claim 1, wherein the suctioned material container is releasably connected to the suction head.
 32. The suction apparatus in accordance with claim 1, wherein a suction port associated with the suction blower device is at least one of arranged and formed on the suctioned material container.
 33. The suction apparatus in accordance with claim 1, comprising a suction head housing of the suction head on which at least one of the first air outlet and the second air outlet are at least one of arranged and formed.
 34. The suction apparatus in accordance with claim 1, wherein the channel device is arranged in an inside space of the suction head, wherein the inside space, in particular, is delimited by a suction head housing of the suction head.
 35. The suction apparatus in accordance with claim 1, wherein the suction apparatus is set up and configured as at least one of i) a wet-dry vacuum cleaner and ii) a mobile vacuum cleaner and iii) a stand-alone vacuum cleaner.
 36. A suction apparatus, comprising a suction head, a suctioned material container for accommodating suctioned material, a suction blower device arranged on the suction head and a channel device associated with the suction blower device for conducting process air at the suction head, wherein the channel device comprises at least one first air outlet and a second air outlet, wherein the channel device comprises a first channel associated with the first air outlet for supplying air to the first air outlet and a second channel associated with the second air outlet for supplying air to the second air outlet, and wherein a smallest angle between a first longitudinal central axis of the first channel and a second longitudinal central axis of the second channel is at least one if i) at least 40° and ii) at most 70°. 